sql server 2008安装试图执行未经授权的操作
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win8.1系统
单击“取消”,会继续安装的。这个没事。只是缺少一些插件而已,没事的。 参考技术A 我们私聊吧???Sql Server???SQL SERVER ????????????
?????????int with ?????? serve span ?????? inner -- blog
??????:???Sql Server???SQL SERVER ??????????????????SQL SERVER 2005?????????????????????????????????????????????SQL SERVER 2005???????????????CTE?????????????????????CTE?????????????????????
??????CTE??????????????????Common Table Expression ???SQL SERVER 2005????????????????????????????????????
#??????????????????
1???sql
1 Create table GroupInfo([Id] int,[GroupName] nvarchar(50),[ParentGroupId] int) 2 3 Insert GroupInfo 4 5 select 0,??????????????????,null union all 6 7 select 1,??????????????????,0 union all 8 select 2,??????????????????,1 union all 9 select 3,??????????????????,1 union all 10 select 4,????????????????????????,2 union all 11 select 5,????????????????????????,2 union all 12 select 6,????????????????????????,3 union all 13 select 7,????????????????????????,3 union all 14 15 select 8, ???????????????,0 union all 16 select 9, ?????????????????????,8 union all 17 select 10,????????????????????????,8 union all 18 select 11,???????????????????????????,9 union all 19 select 12,???????????????????????????,9 union all 20 select 13,??????????????????????????????,10 union all 21 select 14,??????????????????????????????,10
2????????????
#????????????Demo
1???????????????????????????????????????????????????,???????????????????????????
1 --???????????????????????????????????????????????? 2 with 3 CTE 4 as 5 ( 6 select * from GroupInfo where Id=1 7 union all 8 select G.* from CTE inner join GroupInfo as G 9 on CTE.Id=G.ParentGroupId 10 ) 11 select * from CTE order by Id
1 --???????????????????????????????????????????????? 2 with 3 CTE 4 as 5 ( 6 select * from GroupInfo where Id=14 7 union all 8 select G.* from CTE inner join GroupInfo as G 9 on CTE.ParentGroupId=G.Id 10 ) 11 select * from CTE order by Id
2?????????????????????
1 --?????????????????? 2 with 3 CTE 4 as 5 ( 6 select Id,GroupName,ParentGroupId,GroupPath=CAST( GroupName as nvarchar(max)) from GroupInfo where Id=1 7 union all 8 select G.*,CAST(CTE.GroupPath+???//???+G.GroupName as nvarchar(max)) as GroupPath from CTE 9 inner join GroupInfo as G 10 on CTE.Id=G.ParentGroupId 11 ) 12 select * from CTE
3?????????????????????????????????????????????????????????
1 --??????id????????????????????????????????????sort??????????????????sort?????????????????????????????????????????????????????? 2 WITH 3 CTE 4 AS 5 ( 6 SELECT * ,CAST(RIGHT(???000??? + CAST([Id] AS VARCHAR), 3) AS VARCHAR(MAX)) AS sort FROM GroupInfo 7 WHERE ParentGroupId = 0 8 UNION ALL 9 SELECT GroupInfo.* ,CAST(sort + RIGHT(???000??? + CAST(GroupInfo.[Id] AS VARCHAR),3) AS VARCHAR(MAX)) AS sort 10 FROM CTE 11 INNER JOIN GroupInfo ON CTE.Id = GroupInfo.ParentGroupId 12 ) 13 SELECT * FROM CTE ORDER BY sort
4?????????????????????????????????????????????????????????
1 --?????????????????? 2 WITH CTE AS ( 3 SELECT *,1 AS [Level] FROM GroupInfo WHERE ParentGroupId=0 4 UNION ALL 5 SELECT G.*,CTE.Level+1 FROM GroupInfo as G 6 JOIN CTE ON CTE.Id =G.ParentGroupId 7 ) 8 SELECT * FROM CTE
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